Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 07-23-07, 04:15 PM   #1
heyjaffy
Senior Member
Thread Starter
 
Join Date: Jul 2006
Location: Silver Spring, MD
Bikes:
Posts: 143
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
How to reassemble chain without seizing link

I have an SRAM PC48 chain that I need to add a few links to now that I have a new, larger rear derailleur. I have the links that I originally removed from this chain recently, and thought it wouldn't be a big deal to add them back on - I've done such a thing in the past to other chains and it wasn't challenging. Today, as I'm trying to add the links, they're going on too tight/pinched such that it's seizing. I've removed and re-added a couple of times now, and just can't seem to get it right. I tried connecting two extra links off of my main chain to practice, and got them on 'normally' just once, after 3 tries, and I can't tell what I did different. Is there some trick?
heyjaffy is offline   Reply With Quote
Old 07-23-07, 04:18 PM   #2
moxfyre
cyclist/gearhead/cycli...
 
moxfyre's Avatar
 
Join Date: Oct 2004
Location: DC / Maryland suburbs
Bikes: Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo
Posts: 4,166
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Don't worry, this is completely normal for many brands of chains, and it is easy to fix.

When you press the pin back in, the link will normally stick and seize. To unseize it, simply grab the chain around the offending link, with your thumbs flat on the side plates of the neighboring links. FLEX the chain towards/away from your body a couple times (perpendicular to the direction that the chain links bend).

Flexing the chain in this way a couple times will normally loosen the link, allowing it to roll normally!

Last edited by moxfyre; 07-23-07 at 04:29 PM.
moxfyre is offline   Reply With Quote
Old 07-23-07, 04:43 PM   #3
orange leader
B-b-b-b-b-b-bicicle Rider
 
orange leader's Avatar
 
Join Date: Apr 2005
Location: Northfield, MN
Bikes: 1997, stumpjumper S-works hardtail, Medici, Giant allegre (track dropouts and fixed gear), Columbia twosome, schwinn twinn, '67 raleigh 5 speed internal hub, Old triumph 3 speed, old BSA 3-speed, schwinn Racer 2spd kickback, Broken raysport criteriu
Posts: 739
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You can loosen the link by putting the offending pin back in the chain tool. But this time reverse the tool so it's on the opposite side of the chain and put the link back one set of "teeth" in the tool. This pushes the pin through only the near side of the tool as that 2nd step grabs the inside of the chain, and doesn't compress the link. Just be sure to leave a tiny little nub visible from the outside (ie, don't push the pin through), usually 1/4 to 1/2 turn of the chaintool will suffice.
orange leader is offline   Reply With Quote
Old 07-23-07, 05:37 PM   #4
Gonzo Bob
cycles per second
 
Gonzo Bob's Avatar
 
Join Date: Oct 2003
Location: Minnesota
Bikes: Vitus Aluminum, DiamondBack Apex, Softride Powerwing 700, "Generic" Ishiwata 022, Trek OCLV 110
Posts: 1,790
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Many chain tools have two positions for the chain. One for pressing in/out the pin, and one for loosening a stiff link.
Gonzo Bob is offline   Reply With Quote
Old 07-23-07, 06:05 PM   #5
heyjaffy
Senior Member
Thread Starter
 
Join Date: Jul 2006
Location: Silver Spring, MD
Bikes:
Posts: 143
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Gonzo Bob View Post
Many chain tools have two positions for the chain. One for pressing in/out the pin, and one for loosening a stiff link.
Thanks for the advice moxfyre, but apparently I'm too much of a wussy to push the plates out a bit. Gonzo, there's only one position on the cruddy nashbar chain tool that I have. I ended up just putting the chain back together with a very thin shim between the inner roller and the outer plate - that worked. I wasted a good 2 hours on this thing!
heyjaffy is offline   Reply With Quote
Old 07-23-07, 06:12 PM   #6
moxfyre
cyclist/gearhead/cycli...
 
moxfyre's Avatar
 
Join Date: Oct 2004
Location: DC / Maryland suburbs
Bikes: Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo
Posts: 4,166
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by heyjaffy View Post
Thanks for the advice moxfyre, but apparently I'm too much of a wussy to push the plates out a bit.
Maybe I'm explaining it wrong... it takes very little force. Can somebody explain it better?
moxfyre is offline   Reply With Quote
Old 07-23-07, 09:42 PM   #7
heyjaffy
Senior Member
Thread Starter
 
Join Date: Jul 2006
Location: Silver Spring, MD
Bikes:
Posts: 143
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by moxfyre View Post
Maybe I'm explaining it wrong... it takes very little force. Can somebody explain it better?
I think I got it, you did a good job, it just wasn't happening for me. Perhaps I was just so frustrated after having at it for so long. I saw this thin piece of metal/foil that I could stick in there while I drove the pin in, then yank it out, and all was good.
heyjaffy is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:53 PM.